Jet-conveyer construction



.ct. 1924, 1,510,928 L. ELLMAN JET GONVEYER CONSTRUCTION Fil'e d Sept. 10. 1921 3 Sheets-Sheet 1 fume/Z232: .Zowa's Mina/v 7 L. ELLMAN JET CONVEYER CONSTRUCTION Filed Sept. 10. 1921 a Sheets-Sheet 2 Jae/air. @4605 L. ELLMAN JET CONVEYER CONSTRUCTiON Get. 7 1924. 1,510,928-

Filed Sept. 10, 1921 3 Sheets-Sheeifi Patented Get, 7, 1924, l

LOUIS ELLMAN, or CHICAGO, ILLINOIS, assrenon TO M. H. nE'rRIoK cot/trans, or

cnrc'aeo, ILLINOIS, A. oonrona'rron or ILLINOIS.

JET CONVEYER CONSTRUCTION.

To all whom it may concern.

'Be .it known that I, LoUIs ELLMAN, a citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Jet-Conveyer Constructions, specification.

This invention relates to conveyers of a type designed to handle solid material in comminuted form by means of a jet of fluid under pressure. The present invention is directed more particularly to improvements in the construction of conveyers of this type which are designed particularly for the handling of ashes in connection with large furnaces.

As is well known in the art, ash conveyer installations of the type above mentioned customarily include a length of intake pipe which is laid in proximity to the ash doors of the furnace and equipped with intake openings through which the ashes may be introduced. The intake pipe customarily terminates at an elbow which. changes the direction of the conduit, and in the elbow is disposed a nozzle having suitable supply connections to inject a jet of pressure fluid through the conduit in the direction which the ashes are intended to take. At other points in the course of the conduit leading to the point of disposal, it may be necessary to insert other elbows in order to accommodate the line of the conduit to the building or other installationswith which it is associated. Similar jet nozzles may be inserted in certain of these elbows, or elbows may be inserted without the jet nozzles, the former being known as jet elbows and the latter as impact elbows. Likewise if the conduit is long it may be desirable to insert auxiliary jet fittings having nozzles arranged to provide the necessary power to convey the material through an extended straight length of the conduit. These elbows, both of the jet and impact type, must be made on different angles so as to accommodate various degrees of deflection in the direction of the conduit, customary designs being 90, 60, 30, and 22%? Due to the erosive and abrasive action of the ashes and of the steam, these elbows are subject to very rapid wear, so it has become customary to insert liners or wear plates in the portions of the elbows subject tothe impact of the solid of. which the following is a material and the fluid jet, such liners b'eing of wear resisting material and arranged so that they may be replaced when worn.

The present invention has to doparticur larly with improvements in the construction of elbows and jet fittings designed-for installation as above described. The general purpose of the invention is the provision of a construction which may be embodied with uniformity in elbows or jet fittings of different degreesof angularity, all of which have identical interchangeable Wear receiving parts, so that it is necessary to keep in stock only to replace a worn liner in any elbow or jet fitting. i 1

Anotherobjectof the invention isthe provision of a construction which is adapted to a great variety of installations by virtue of the fact that any port-ion of the conduit at any desired place, either in front of the jet nozzle or elsewhere; may be equipped with the readilyaccessible interchangeable liners. This is of particular importance in view of the difference in steam pressures employed in diiferent installations, and particularly in View of the customary variation of steam consumption in any steamplant, as a fittinghaving the wear resisting lining of ,suliicient extent in one instance may prove inadequate for suitable-protection of the oneform of repair part in order conduit in other instances of other conditions of operation.

Another object of the' invention is the provision of a construction inwhich there is no necessity for changing position of any portion of thepermanentconduit incident to repair or replacement of a worn part'of' the fitting, or tional support incident to such. operations of replacement or repair. I

A further object of the invention is the provision of a structure having the attributes above specified which may bemanufactured economically and installed with facility, which is of compact construction so as, to permit its being installed in limited clearances, and in which replacement of parts may be effected quickly and with ease.

Other and further objects of the invention will be pointed out hereinafter, indicated in the appended claims or obvious "to one skilled in the art upon an understandingof the present disclosure. In the accompanying to supply temporary or addij for the conduit or the fitting drawings forming part of this specification I have disclosed what I regard as a preferred embodiment of the invention but it is to be understood that the same is here submit ted for the purpose of illustration merely, and is not to be regarded as exhaustive of the forms which the invention may take. nor is it to be given the efiect of limiting the invention as claimed, short of its true and most comprehensive scope in the art.

In the said drawings Fig. 1 is a longitudinal section through a 90 jet elbow embodying my improved construction Fig. 2 is an end elevation showing two of the cover plates removed and two of the liners removed;

Fig. 3 is acrosssection on the line 3-3 of Fig. 1; and

Fig. 4: is a fragmentary longitudinal section of a 30 elbow.

The nature of the invention may be best understood by reference to these drawings in detail, whence it will be understood that the numeral 1 designates an elbow or angular conduit member having the intake branch 1 adapted for connection to a suitable conduit C. The discharge branch l of the elbow extends at an angle relative to the inlet branch 1 and is equipped with a terminal annular flange 1. The portion of the val] of the discharge branch in front of and in line with the intake branch is apertured at A, and a cover plate 2 is arranged to close said apert-ured portion. This cover plate extends from the flange 1 to a flange 4 on the end wall of the elbow member, and is secured in place by bolts 5 engaging its marginal portions and seated in slots 5 in the side wall of the elbow member. Portions of the wall ofthe elbow member at. each side of the aperture A and in front of the inlet branch 1 are recessed or shouldered to form seats for the reception of portions of an arcuate liner 6. said seats affording shoulders 7 abutting the margins of said liner. Likewise the wall of the portion 1* is shaped to form an interior seat or recess 8 for the reception of a liner 6 which is identical with the liner 6. These liners are formed of suitable wear-resisting material, and are of semi-circular contour, their inner cylindrical surfaces being on the proper radius to aiford the desired diameter of passage through the fitting when a pair of the liners are arranged together in complementary fashion. They have laterally extending lugs 6 which (it into grooves 9 in the inner wall of the elbow member, whereby said liners are held against longitudinal shifting, although they are susceptible of withdrawal through the wall aperture A when the cover plate 2 is removed. This manner of supporting the liners will permit the removal of one of tlien without requiring displacement of those above it, such others having independent support on. the wall of the elbow member through the instrumentality of the lugs 6. The length of the liners has a definite relationship to the length of the wall opening. so that the entire area of the cover plate :2 may be covered interiorly by the liners. In the end wall of the elbow mem her is inserted a bushing 3 which affords a mounting for the jet injector which comprises a sleeve 10 and a nozzle 11 disposed on the axis of the conduit formed by the liners and the discharge branch of the elbow. This injection device is arranged for connection with a suitable source of fluid pressure supply so that a forcible jet may be directed through the conduit.

The areas on the wall of the conduit in front of the nozzle which are subject to the erosive and abrasive effect of the jet and the transported material vary considerably as to location, both as between different installations and in a given installation. The latter variation is due to changes in the nature of the ash, variations in the steam consumption, wear of the nozzle and other conditions. In order to accommodate a given elbow to various installations, and to make proper allowance for shifting of the area. of wear, I provide as a part of the device supplementary extension fittings whereby any desired extent or portion of the conduit may be equipped with the interchangeable wear resisting liners. This extension fitting comprises a cage or sleeve member 12 having terminal flanges 12 adapted for connection to suitable flanges on an elbow member, another similar sleeve member or a conduit pipe. These connecting flanges preferably are grooved to receive packing gaskets 14. The sleeve member is :zpertured at opposite sides, said. apertures extending between the terminal flanges and being of sufficient width to permit the in sertion of the complementary liners 6". These liners are identical with the liners 6 and 6, and they have the laterally projecting lugs 6" adapted to register'in grooves in the side portions of the sleeve member. .ln order to cover the interior area of the connecting flanges between the cover plates it is necessary that the adjacent liners be susceptible of a certain extent of longitudinal movement after they are inserted through the apertures 12, and to permit this the grooves 9 adjacent one end of the sleeve member are elongated. hen the lugs 6" reach the end of said elongated grooves however, the liners are held against further longitudinal movement, so that the liners below them may be removed without displacing them. The sleeve member is provided with longitudinal ribs 12 adapted to abut the ends of the liners 6". The

-. tions of the cover apertures 12 areclosed by suitable cover plates 15 preferably ofidentical size and form, arranged so that their ends will abut the terminal flanges of the sleeve member and having theirlateral portions formed to receive securing members 5 by which they are secured in position on the sleeve member. Suitable packing, designated at 16, may be applied between the abutting porplates and the sleeve member or elbow member to provide her metie joints.

In the drawing I have shown but one of these extensionfittings applied to an elhow, but it will be obvious thattwo or more such identical fittings may be con joined in the same manner. In this fashion any desired length of the conduit infront of the jet may be equipped with the re placeable liners, or any part of the conduit may be so equipped.

It will he observed that any of the cover plates 201* 15 may be removed at any time and will afford access to the associated liners to permit their removal and replace ment or to allow for inspection of the interior of the conduit. To facilitate the removal of the liners, they may be provided with .t-ool seats 17 on theiroutersides, afford ing engagement for a suitable tool to permit their withdrawal. Incident to the removal of the cover plates or liners, the structural continuity of the conduit is maintained by the sleeve members and the elbow member, so that it is not necessary to shift any part of the conduit or to provide temporary sup port for it. In positions where the fittings extend vertically, the lower line-rs do not have to carry the weight of those above them, and hence they may be removed independently. v 1

Elbow members having these characteristics of construction may be made in any desired; angle. In Fig. 4 is illustrated a 30 elbow member. Elbows of this COl1Stl.llC

tion likewise are adapted for use either as jet elbows or as impact elbows, in which latter case collar 10 and nozzle 11 are omit ted and the opening in the bushing 3 closed with an ordinary pipe plug. In all instances the construction is such that liners are disposed in the path of material drawn in through the inlet branch, and the conduit in front. of the nozzle where the material may be forcibly impinged against the sides,

is similarly protected. The liners being identical in size and form, they may be utilized interchangeably in elbows of .dif-' ferent angula-rity as well as in the straight extension'fittings, and being of symmetrical form and uniform cross-section they may be reversed end for end when worn in partand their term of utility prolonged. The elbow members 1 and the sleeve members .12 constitute frame portions which maybe rigidly-secured together and to the associat-ed pipes to constitute a continuous rigid struc ture. When the cover plates are in place on these: frame members they constitute therewith a continuous conduit which may be rendered desirably packing. The frame members also constitute supports for the removable and inter changeable liners which afl'ord the conduit the desired internal protection from the erosive and abrasive action of the trans ported material.

I claim:

I. In a structure of the class described, a frame member having its terminal portions arranged to be secured to conduits to afford mutual rigid support, said frame member having a removable wall portion, and identical liners arranged in complementary relationship to form an internal conduit within said frame member, complementary liners being independently removable from the frame member when its removable wall portion is removed.

2. In a structure of .the class described, a frame member provided with terminal connection flanges joined by longitudinal wall portions affording lateral apertures,

cover plates demounta-bly secured to the frame member to close said apertures, liners supported on the frame member and covering inner surfaces of the same and of said cover plates, said liners being removable through said apertures when the .cover plates are displaced, and means on said liners and frame member cooperating to air tightby suit-able prevent longitudinal displacement of the former by ravity.

- 3. In a device of the class described, the combination'of frame members adapted for connection at their ends .to provide a continuous rigid structure, said frame mem bers being provided with. lateral apertures, cover plates for closing said apertures to afford a continuous conduit, and aplurality of identical liners disposed within said frame members in complementary arrange=- ment to form an internal conduitenclosed by the frame members and cover plates, said liners being individually supported on the frame members and being removable through the lateral. apertures thereof.

4. In a conveying. device, the combination of a plurality of frame members arranged for connection at their ends to provide a continuous rigid structure, said frame meme bers being provided with lateral apertures,

cover plates for closing said apertures to.

afford a continuous conduit, a plurality of liners. disposed within said conduit in cornplementary arrangement to form an inter-q nal conduit covering intericrwall areas of p the frame members and cover plates, said liners being provided with lateral. lugs over lapping portions of the frame members whereby they are retained against shifting from one frame member to another, said liners being removable laterally from the frame members when cover plates are removed.

5 In a device of the class described, the combination. of an elbow member and a sleeve member arranged for connection at terminal portions to afford a continuous rigid structure, said members being provided with lateral apertures, removable cover plates for closing said apertures to afford a continuous conduit, a plurality of liners arranged within said elbow and sleeve mem bers to cover internal wall portions thereof, all of said liners being of identical form. and size and certain thereof being disposed in complementary arrangement, said liners including parts whereby they are individually supported upon the elbow and sleeve members, and said liners being removable through the lateralapertures in said members.

6. In a device of the class described, the combination with an elbow member having a lateral aperture, of a cover plate for covering said aperture, and a plurality of identical liners of semi-circular contour disposed within said elbow member to cover wall portions thereof, certain of said liners being disposed in complementary arrangement, each of said liners having independent support upon the elbow member to limit their longitudinal movement, and all of said liners being removable through the lateral aperture thereof.

7. In a device of the class described, an elbow member having an inlet branch and an outlet branch, the latter portion being provided with a lateral aperture, a detachable cover plate for closing said aperture, a plurality of identical liners of semi-circular contour arranged to cover interior wall port-ions of said outlet branch, certain of said liners being disposed in front of the inlet branch, certain of said liners being disposed in complementary arrangement, said liners having laterally extending lugs engaging the elbow member and being removable through the lateral aperture thereof.

8. In a device of the class described, the combination of a tubular elbow member having an entry branch and a discharge branch, said member being provided with a lateral aperture, a removable cover plate for closing said. aperture, and a plurality of identical liners disposed to cover internal wall surfaces of the discharge branch, certain of said liners being disposed in the line of entry from the entry branch and others being arranged in complementary disposal beyond the entry branch, said liners having individual support upon the elbow member and being removable through the lateral aperture thereof.

9. In device of the class described, the combination of frame member having terminal connection flange and a longitudinal wall portion, said wall. portion being provided with a lateral aperture, a removable cover plate for closing said aperture to form a continuous conduit, a plurality of identical liners arranged in said conduit in complementary disposal to cover interior surfaces of said wall portion and cover plate, said liners having laterally projecting lugs overlapping said wall portion. and being removable through said aperture.

1.0. In a device of the class described, the combination of a plurality of tubular frame members arranged for connection at their ends to provide a continuous rigid structure, said frame members being provided with lateral apertures, removable cover plates for closing said apertures to afford a continuous conduit, a plurality of liners arranged therein in complementary disposal to cover interior wall portions of said conduit, said liners having independent support on said frame members, certain of said liners covering wall portions of both said frame members and all of said liners being removable through said lateral apertures.

11. In a device of the class described, tubular members having terminal junction flanges, said tubular members having lateral wall apertures, removable cover plates for closing said apertures, a plurality of liners independently supported within said tubular members to cover inner surfaces thereof, certain of said liners overlapping connection flanges of conjoined tubular members, said liners being removable through the lateral wall apertures.

12. In a device of the class described, a tubular elbow member provided with a lat eral wall opening, a cover plate for closing said wall opening, a plurality of identical complementary liners detachably mounted within the tubular member, certain of said liners being disposed in complementary arrangement to cover an entire circumferential area of the interior wall of the tubular member, other of said liners being arranged to cover part circumferential portions of such wall surface, and all of said liners being removable through said wall apertures.

13. A conveyor elbow comprising a frame member having a discharge branch and a laterally communicating inlet branch, said discharge branch having a removable wall portion, and a plurality of identical liners disposed in said discharge branch with side and end margins in abutment to form a continuous lining conduit within the frame member, certain of said liners being disposed in front of the inlet branch, and said liners being removable when said wall portion is removed.

14-. Apparatus of the class described, comprising a discharge conduit, an inlet conduit communicating laterally therewith, a

plurality of identical liners arranged in complementary relationship Within the discharge conduit, and means retaining said liners in end abutment to afford a Wear-resisting conduit in communication With the inlet conduit, said liners being removable laterally from the discharge conduit.

15. Apparatus of the class comprising a substantially upright discharge bran-ch, a laterally communicating inlet branch, coinplementary liners arranged in the discharge branch with their ends in abutment to afford a continuous wear-resisting conduit above the inlet branch, said liners 'being removable laterally from the discharge branch and means supporting said liners to retain them in position after removal of subjacent liners.

16. Apparatus of the class described comprising a frame having a discharge leg and a laterally communicating inlet leg, a noz- Zle arranged to discharge fluid-longitudinally through the discharge leg and a plurality of identical liners arranged in complementary relationship and in end abutment along the discharge leg to afi'ord a continuous Wear-resisting conduit of uniform diameter in front of the nozzle, said liners being removable laterally from the discharge leg.

In testimony whereof I have hereunto signed my name,

LOUIS ELLMAN. 

